Deirdre Heersink, DO
Family Medicine Physician · Topsham, ME
Deirdre Heersink, DO is a family medicine physician with a practice address in Topsham, Maine, and NPI 1417157298, issued on Jul 20, 2007. Check the license (Maine 2174, as entered in NPPES) on the Maine Board of Licensure in Medicine; the Medicare figures below come from public CMS files.
- Name
- Deirdre Heersink
- Credential
- DO
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 2174 ME
Self-reported in NPPES; status is on the state search - Practice location
- 1 Wellness Way, Topsham, ME 04086
- Phone
- (207) 406-7667
- Enumerated
- Jul 20, 2007
- Record last updated
- Jul 31, 2025
- Fax
- (207) 406-7601
- Medicaid ID
- 432682099 ME
- Medicare enrollment
- Enrolled (PECOS I20101028000531); accepts Medicare assignment
- Medical or professional school
- University Of New England, College Of Osteo Medicine, 2007
- Entity
- Type 1 · individual
Also registered at 1 Wellness Way
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sarah Alto, FNPFamily Nurse Practitioner1487934436
- Anthony Caiazzo, APRN-CNPFamily Nurse Practitioner1306436902
- Michelle CharlesonRegistered Nurse1811847494
- Patricia Davis, LCSWClinical Social Worker1366504516
- Debra Francis, NPNurse Practitioner1497483465
- Shannon Gaines, PA-CPhysician Assistant1588277958
Verify Deirdre Heersink in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaine Board of Licensure in Medicine
Search for license 2174Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.9 times the Medicare Part D claims of the average family medicine physician in 2024
10,177 Medicare Part D claims for 261 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 22% of claims. 73 claims were for opioids.
Most prescribed
- Levothyroxine Sodium587 claims
- Eliquis577 claims
- Atorvastatin Calcium517 claims
- Sertraline Hcl388 claims
- Furosemide360 claims
- Pantoprazole Sodium279 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 79.3 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Mainegeneral Medical CenterAugusta, ME
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
9 family medicine physician records list a practice address in Topsham
They are 9 of the 184 NPPES records with a practice address in Topsham, and 1,172 family medicine physician records in Maine.
All 9 in Topsham → All 1,172 in Maine → Every provider in Topsham →
Other family medicine physician records in Maine
- Jeffrey Aalberg, MDFalmouth, ME1669400222
- Elizabeth Abbas, DOFarmington, ME1932588100
- Robert Abrams, M.D.Lubec, ME1720067010
- Andrea Abrell, DOAugusta, ME1558525188
- Justine Achille, MDGorham, ME1962962324
- Katie Adams, MDLincoln, ME1154764975
- Thomas Adams, MDSouthwest Harbor, ME1851331565
- Rebecca Adamson, MDLewiston, ME1912313982
- Constance Adler, M.D., F.A.A.F.P.Farmington, ME1487689675
- Devesh Agarwal, M.D.Lincoln, ME1710116876
Common questions
What is Deirdre Heersink, DO's NPI number?
Deirdre Heersink, DO's National Provider Identifier (NPI) is 1417157298, issued on Jul 20, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Deirdre Heersink, DO located?
The NPPES record lists a practice address at 1 Wellness Way, Topsham, ME, 04086. Phone: (207) 406-7667. Providers update this record themselves, so call before visiting.
How can I verify Deirdre Heersink, DO's license?
NPPES lists Maine license number 2174, as entered by the provider. Search the Maine Board of Licensure in Medicine at https://www.maine.gov/md/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Deirdre Heersink, DO prescribe under Medicare Part D?
In 2024, Deirdre Heersink, DO had 10,177 Medicare Part D claims for 261 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is Deirdre Heersink, DO's MIPS final score?
The 2023 MIPS final score is 79.3 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.